Comparison of soil organic carbon and nitrogen dynamics between urban impervious surfaces and vegetation
文献类型：期刊论文
| 作者 | Dou, Xiaolin; Lu, Meng; Chen, Liding |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2021 |
| 卷号 | 520页码:- |
| 关键词 | Membrane distillation Metal organic framework Aluminium fumarate Electrospun nanofiber membrane Bead-on-string structure |
| ISSN号 | 0011-9164 |
| 英文摘要 | Although electrospun nanofiber membranes (ENMs) are attractive for membrane distillation (MD), the desalination performance needs further improvement for practical applications. In this work, aluminium fumarate (AlFu) metal organic frameworks (MOFs) were incorporated into polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP) nanofiber membranes via electrospinning to obtain substantial performance improvement. The results showed that the fluxes of the composite ENMs were increased by 60% and 114% when adding 0.1 and 2 wt% of AlFu MOF, respectively, compared to the pristine PVDF-HFP ENM. The systematic characterization proved that, the mean pore sizes of the composite ENMs were enlarged due to the unique beadon-string structures, which was the key factor for flux enhancement demonstrated by theoretical calculation. The improved thermal efficiency in DCMD process due to the low thermal-conductivity of AlFu MOF also helps to increase permeate flux. Other factors such as increased surface roughness and additional nanochannels for water vapors were also considered helpful in flux enhancement. The optimum membrane (2 wt% AlFu MOF) showed stable desalination performance during a 46-h DCMD test using seawater as feed, demonstrating the durability and robustness of the composite ENMs. The present study confirms the positive role of MOFs for performance enhancement of ENMs in DCMD application, showing great potential in seawater desalination. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46719]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Yunnan Univ, Sch Ecol & Environm Sci, Kunming, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dou, Xiaolin,Lu, Meng,Chen, Liding. Comparison of soil organic carbon and nitrogen dynamics between urban impervious surfaces and vegetation[J]. LAND DEGRADATION & DEVELOPMENT,2021,520:-. |
| APA | Dou, Xiaolin,Lu, Meng,&Chen, Liding.(2021).Comparison of soil organic carbon and nitrogen dynamics between urban impervious surfaces and vegetation.LAND DEGRADATION & DEVELOPMENT,520,-. |
| MLA | Dou, Xiaolin,et al."Comparison of soil organic carbon and nitrogen dynamics between urban impervious surfaces and vegetation".LAND DEGRADATION & DEVELOPMENT 520(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。